‘Forever chemicals’ found in Ames drinking water


Graphic via the Iowa DNR.

Eleanor Hildebrandt | January 14, 2022

The Iowa Department of Natural Resources found PFAS in Ames drinking water.

The city is Iowa’s ninth-biggest city had concentrations of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in its water, detected at 3.1 and 6.5 parts per trillion. The Iowa DNR wants Ames to test the drinking water quarterly because the concentrations were found in water already cleaned by the city’s water utility service.

The chemicals were also found in wells within city limits. One well that tested positive is the site of firefighter trainings. Firefighter foam is one of the most common materials with PFAS in it.

Iowa Capital Dispatch reported Rock Valley, an Iowa town of 4,000 people, also tested positive for PFAS. Wells in the city also tested positive. All of the PFAS levels in the two towns are below federal standards, but the Iowa DNR is planning on having the cities continue testing the water. West Des Moines water also previously tested positive for the chemicals.

The Iowa DNR has released less than half its water quality tests for the state. Supervisor of the DNR’s water quality bureau Roger Bruner previously said testing is underway for cities in Iowa. He said results will be posted as the department receives them.

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